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Search: Posts Made By: Jipe
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Forum: Folding Bikes
09-20-20, 03:36 AM
Replies: 1,393
Views: 350,631
Posted By Jipe

If you look at the picture of the adapter showed...

If you look at the picture of the adapter showed by Bikegang, it does what Glye is saying: a more vertical angle to the block.

The sport stem is compatible with the bags wit a 260mm high frame but...
Forum: Folding Bikes
09-19-20, 12:34 PM
Replies: 1,393
Views: 350,631
Posted By Jipe

Approval of the TI Birdy means also to take some...

Approval of the TI Birdy means also to take some responsibility if the design has some problems.

It seems to me difficult for R&M to take any responsibility of a design they didn't participate to...
Forum: Folding Bikes
09-16-20, 02:26 AM
Replies: 1,393
Views: 350,631
Posted By Jipe

Why would this be so expensive ? Valeria is...

Why would this be so expensive ?

Valeria is selling a front block adapter...
Forum: Folding Bikes
09-09-20, 10:57 PM
Replies: 10
Views: 5,601
Posted By Jipe

One more nice Japanese bike made for... Japanese...

One more nice Japanese bike made for... Japanese people only !

Besides the size, it has also some other weak points.

Indeed, no mudguards, but also no light and with a weight of almost 12kg...
Forum: Folding Bikes
09-04-20, 12:45 PM
Replies: 36
Views: 1,200
Posted By Jipe

The difference come also from the pressure:...

The difference come also from the pressure: usually, for the same width, a small diameter tire is inflated at a higher pressure than the same width large diameter tire.

Example: the very common...
Forum: Folding Bikes
08-25-20, 02:37 AM
Replies: 30
Views: 1,297
Posted By Jipe

Its a good price for an almost new Tikit. ...

Its a good price for an almost new Tikit.

The fact that BF doesn't make it is for me not a major drawback.

But the Tikit isn't as easy to use as a Brompton, especially if you need to fold it...
Forum: Folding Bikes
08-19-20, 12:27 PM
Replies: 24
Views: 1,224
Posted By Jipe

It seems that Vostok is out of business. Did...

It seems that Vostok is out of business.

Did you contact them to verify that they still sell Brompton parts ?
Forum: Folding Bikes
08-16-20, 05:22 AM
Replies: 24
Views: 1,224
Posted By Jipe

I do not agree with this statement. For the...

I do not agree with this statement.

For the Ti seatpost, the original one 520mm long weight about 400g. The Pentaclip weight a little more than 100g.

A Ti seatpost with integrated saddle mount...
Forum: Folding Bikes
08-12-20, 02:50 AM
Replies: 1,393
Views: 350,631
Posted By Jipe

It looks very much like a 2016 Riese&Müller World...

It looks very much like a 2016 Riese&Müller World Birdy Sport (same color, same design) with:
➜ Shimano 8-speed derailleur
➜ Mudguards and kickstand
➜ Weight: 11.9 kg
➜ Gear ratio: 2.57 to 7.04 m...
Forum: Folding Bikes
07-06-20, 02:30 AM
Replies: 20
Views: 1,294
Posted By Jipe

Yes, there are many studies showing that the...

Yes, there are many studies showing that the efficiency drops with smaller cogs.

But there are other factors like dirt that have also a major effect on chain transmission efficiency.

The same...
Forum: Folding Bikes
07-05-20, 02:34 AM
Replies: 20
Views: 1,294
Posted By Jipe

I do not have this setup long enough (only since...

I do not have this setup long enough (only since September 2019) to give a feedback about longevity of the 9t cog.

But with the wheel size and the chainring size I have, I do not use very often...
Forum: Folding Bikes
06-26-20, 03:21 PM
Replies: 20
Views: 1,790
Posted By Jipe

This Brooks saddle is a disaster ! You can...

This Brooks saddle is a disaster !

You can have a comfortable saddle weighting 80g !

The original rack is indeed very heavy. If you want to keep the rear mudguard, the best option is a...
Forum: Folding Bikes
06-15-20, 02:37 PM
Replies: 51
Views: 4,993
Posted By Jipe

This problem happened for an electric assist...

This problem happened for an electric assist folding bike with a rear hub motor, the Vellobike+ and as far as I know, only one user mentioned this problem that seems to come from the motor still...
Forum: Folding Bikes
06-14-20, 04:13 AM
Replies: 51
Views: 4,993
Posted By Jipe

There is a third party system for a front luggage...

There is a third party system for a front luggage like on the Brompton but it is attached t the frame with steel cables and isn't reliable (some user had their front luggage bag falling during their...
Forum: Folding Bikes
05-28-20, 02:03 PM
Replies: 2,453
Views: 682,001
Posted By Jipe

The kickstarter bike wasn't a mature bike at all,...

The kickstarter bike wasn't a mature bike at all, everything had to be redesigned afterward.

Yes gluing is used, but this wasn't what was promised during the kickstarter campaign (I think that...
Forum: Folding Bikes
05-28-20, 03:34 AM
Replies: 2,453
Views: 682,001
Posted By Jipe

This statement is really a joke ! The...

This statement is really a joke !

The kickstarter launch was a pure social communication and marketing exercise from a guy with very little technical knowledge.

The huge delay before that the...
Forum: Folding Bikes
05-17-20, 09:44 AM
Replies: 20
Views: 5,967
Posted By Jipe

A similar model from Panasonic with smaller 14"...

A similar model from Panasonic with smaller 14" wheels. Still available...
Forum: Folding Bikes
05-15-20, 02:40 AM
Replies: 26
Views: 14,485
Posted By Jipe

I do not agree on about the folding of the Birdy...

I do not agree on about the folding of the Birdy vs. the folding of the PakiT.

The PakiT doesn't fully fold, to have it fully packed, you need to remove the front wheel. It is not very difficult...
Forum: Folding Bikes
05-10-20, 08:56 AM
Replies: 22
Views: 1,875
Posted By Jipe

For a road bike, small wheels 20" ETRTO 406, 18"...

For a road bike, small wheels 20" ETRTO 406, 18" ETRTO 355, 17" ETRTO369 or 16" ETRTO349 are not a drawback at all.

With a well designed bike, small wheel provide as good performances than big...
Forum: Folding Bikes
05-10-20, 03:38 AM
Replies: 22
Views: 1,875
Posted By Jipe

The first reason is obviously because it folds ->...

The first reason is obviously because it folds -> easy to carry/take with you everywhere what also brings theft protection.

But there is another advantage, small wheel (16" ETRTO 349 and 20" ETRTO...
Forum: Folding Bikes
04-12-20, 12:26 PM
Replies: 8
Views: 1,399
Posted By Jipe

Basically, its a New Series Marathon but with...

Basically, its a New Series Marathon but with 17"/ETRTO369 wheels instead of 20"/ETRTO406 wheels and not in stainless steel. So, it should be cheaper than the NS Marathon.

With this size of...
Forum: Folding Bikes
03-29-20, 03:11 AM
Replies: 1,393
Views: 350,631
Posted By Jipe

The first question to ask is what is the goal of...

The first question to ask is what is the goal of the change ?

If the goal is to have bigger diameter wheels to ride faster at the same pedaling speed, then changing the transmission (for instance...
Forum: Folding Bikes
03-20-20, 01:17 PM
Replies: 6
Views: 924
Posted By Jipe

Yes, there is at least one. But its...

Yes, there is at least one.

But its expensive.

If it is just for this single use, you do not need to protect the bike if it remains in its original factory packaging because this packaging is...
Forum: Folding Bikes
03-19-20, 03:33 AM
Replies: 11
Views: 2,352
Posted By Jipe

The first limitation is the front mudguard...

The first limitation is the front mudguard especially the two bolts.

With my wheels equipped with Schwalbe Pro-one 28-406 (old model, not the 2020 ADDIX model) that are in fact 32mm wide, I had to...
Forum: Folding Bikes
03-18-20, 04:55 AM
Replies: 11
Views: 2,352
Posted By Jipe

Before deciding about the wheel size of my new...

Before deciding about the wheel size of my new wheels, I tried it temporarily with ETRTO 406 wheels from another bike (but without front brake as the Birdy disc needs a special hub with the disc on...
Forum: Folding Bikes
03-15-20, 04:20 AM
Replies: 2,453
Views: 682,001
Posted By Jipe

The problem is that besides some enthusiastic...

The problem is that besides some enthusiastic people, for people comparing Helix with other folding bikes, Helix didn't fulfill its promises:
- Cheap titanium bike: its not cheap anymore.
-...
Forum: Folding Bikes
03-13-20, 09:43 AM
Replies: 67
Views: 7,400
Posted By Jipe

With the type of stem of the Revelo (designed to...

With the type of stem of the Revelo (designed to reduce the frame length) which is similar to the one of the Ori, its not possible to place a front bag like on the Brompton (and copied by some Bike...
Forum: Folding Bikes
02-24-20, 03:38 PM
Replies: 9
Views: 4,462
Posted By Jipe

The fold is like a Dahon fold, totally different...

The fold is like a Dahon fold, totally different from the Brompton:
https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulletin/750x500/s_l1600_4a0970b52fff690599fca2036c38117bf273ec86.jpg...
Forum: Folding Bikes
01-28-20, 01:43 PM
Replies: 31
Views: 2,695
Posted By Jipe

I guess that like the special caliper of the...

I guess that like the special caliper of the Brompton (down left cable output) it has something to do with the folding of the bike and the front bag.
...
Forum: Folding Bikes
12-08-19, 04:03 PM
Replies: 40
Views: 7,205
Posted By Jipe

That's not true, I bought mine in August directly...

That's not true, I bought mine in August directly from Pacific Cycles Max Yeh.

Its the one pictured in the Birdy thread:
...
Forum: Folding Bikes
11-18-19, 11:30 AM
Replies: 1,393
Views: 350,631
Posted By Jipe

The Birdy uses an inverted A-Headset, see below...

The Birdy uses an inverted A-Headset, see below picture:...
Forum: Folding Bikes
09-20-19, 07:16 AM
Replies: 2,453
Views: 682,001
Posted By Jipe

My Birdy with 20" wheels is also smaller ! ...

My Birdy with 20" wheels is also smaller !
https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/1024x910/b_b3c10_89be696c3c542b4d44a7b5ae995d2de036b82384.jpg

So, let say "smallest in its class ,...
Showing results 1 to 32 of 32


 
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